Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.atnf.csiro.au/computing/software/miriad/doc/uvdump.html
Дата изменения: Unknown Дата индексирования: Sun Apr 10 21:15:30 2016 Кодировка: Поисковые слова: п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п п |
Task: uvdump Purpose: Generate an output text file of information from a visibility dataset. Categories: uv analysis UVDUMP generates a text file containing information from a visibility dataset. This information will usually be used as input to other analysis outside Miriad. For each data record selected, an line is produced in the output text file. Each line can consist of several values. Key: vis The input UV dataset name. No default. Key: vars The name of the values to be written. Possible names are the names of visibility variables (with no additional processing), or some of the following special names given below. Note these names cannot be abbreviated. real Real part of a correlation. imag Imaginary part of a correlation. amp Amplitude of a correlation. phase Phase of a correlation, in degrees. flag Data flag. This is 1 for good data and zero for bad data. variance Theoretical variance of the real/imag parts. blno Baseline number in the form xx-yy (character string). ant1 First antenna of the baseline. ant2 Second antenna of the baseline. polid Polarization identifier (character string). dtime Offset time, as a fraction of a day, relative to the date of first sample. tod Time-of-day, as a day fraction. freq Frequency of each channel, in GHz. uu U coordinate of the first channel after any frequency averaging is performed. The units are in wavelengths. vv V coordinate. See "uu" above. ww W coordinate. See "uu" above. Several names can be given, separated by commas. Key: line This selects which channels to include. See the help on `line' for more information. The default is to include all data. Key: select This selects the data to be processed, using the standard uvselect format. Default is all data. Key: stokes Normal stokes keyword. The default is to list the unconverted polarisations. Key: log The list output file name. The default is the terminal. Key: options This controls what is listed, and the verbosity. Several can be given, separated by commas. Minimum match is used. Possible values are: flagged Process flagged data only. By default only unflagged data are processed. all Process all data. By default only unflagged data are processed. nofqav Do not average the channels of each spectral to produce an average value. Note averaging affects the output for values: real,imag,amp,phase,flag,freq,variance,uu,vv,ww. Depending on the "flagged" and "all" options, either just the good, bad or all channels are used in the averaging. unwrap Attempt to unwrap the phase (assumes consecutive data has the same wrap). space By default values are separated by a comma. This option causes the values to be separated by a space instead. The following control application of calibration corrections. nocal Do not apply antenna gain calibration. nopol Do not apply polarization leakage correction. nopass Do not apply bandpass response correction.